Pith Number

pith:K47VQEDI

pith:2011:K47VQEDIMMNR6STBMPWXJK4EBJ

not attested not anchored not stored refs pending

Determination of the most pertinent EUV proxy for use in thermosphere modeling

S. Bruinsma, T. Dudok de Wit

arxiv:1110.1469 v1 · 2011-10-07 · astro-ph.SR · physics.space-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:11:30.032922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

573f581068631b1f4a6163ed74ab840a642da2d1d7f72975f88f71eb95aeced1

Aliases

arxiv: 1110.1469 · arxiv_version: 1110.1469v1 · doi: 10.48550/arxiv.1110.1469 · pith_short_12: K47VQEDIMMNR · pith_short_16: K47VQEDIMMNR6STB · pith_short_8: K47VQEDI

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/K47VQEDIMMNR6STBMPWXJK4EBJ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 573f581068631b1f4a6163ed74ab840a642da2d1d7f72975f88f71eb95aeced1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba51db2b506545f8f9adf17b5e905f8d9e4849fb8fa829f329f1a85ec868793a",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-10-07T09:52:12Z",
    "title_canon_sha256": "6236837c471f82aaea00feafdbfb8433576b866553cf7d2db4ebca852eb666ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.1469",
    "kind": "arxiv",
    "version": 1
  }
}